-21=7(6x+7)

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Solution for -21=7(6x+7) equation:


Simplifying
-21 = 7(6x + 7)

Reorder the terms:
-21 = 7(7 + 6x)
-21 = (7 * 7 + 6x * 7)
-21 = (49 + 42x)

Solving
-21 = 49 + 42x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-42x' to each side of the equation.
-21 + -42x = 49 + 42x + -42x

Combine like terms: 42x + -42x = 0
-21 + -42x = 49 + 0
-21 + -42x = 49

Add '21' to each side of the equation.
-21 + 21 + -42x = 49 + 21

Combine like terms: -21 + 21 = 0
0 + -42x = 49 + 21
-42x = 49 + 21

Combine like terms: 49 + 21 = 70
-42x = 70

Divide each side by '-42'.
x = -1.666666667

Simplifying
x = -1.666666667

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